Desalination by Evaporation

INDUSTRY > Water & Waste Water

Desalination By Evaporation MSF, MED & VC

Multi-stage flash distillation MSF is a water desalination process that distills sea water by flashing a portion of the water into steam in multiple stages of what are essentially regenerative heat exchangers. Multi-stage flash distillation plants produce over 85 percent of all desalinated water in the world.

Multiple-effect distillation MED is a desalination process where sea water is heated by steam circulated in submerged tubes.In this process there are Multiple-effects in which saline water is sprayed upon steam heated tubes.

Vapor compression desalination VC refers to a distillation process where the evaporation of sea or saline water is obtained by the application of heat delivered by compressed vapor. Since compression of the vapor increases both the pressure and temperature of the vapor, it is possible to use the latent heat rejected during condensation to generate additional vapor. The effect of compressing water vapor can be done by two methods.